Jensen MS, Henriksen TB, Rebordosa C, Thulstrup AM, Toft G, Sørensen HT, Bonde JP, Olsen J. Analgesics during pregnancy and cryptorchidism: additional analyses. Epidemiology. 2011 Jul;22(4):610-2.
Jensen MS, Rebordosa C, Thulstrup AM, Toft G, Sørensen HT, Bonde JP. Maternal use of acetaminophen, ibuprofen, and acetylsalicylic acid during pregnancy and risk of cryptorchidism. Epidemiology. 2010 Nov;21(6):779-85.